CCL19 is also a chemo-attractant for macrophage and T cell recruitment, and this increased expression in the CCL19 subcluster observed in LS skin may suggest a role of CCL19 in the recruitment of immune cells, like macrophages and T cells, to the lesional site during the process of inflammation, making this disease similar in some ways to SSc. This evidence concerns the gene CCL19 and systemic sclerosis.